“The main reason approximately 32 million hectares [320,000 square kilometers, or 123,550 square miles] of mangroves globally have been brought down to 15 million hectares [150,000 square kilometers, or 57,900 square miles] is land use change,” Böer said. This decline has occurred over the last 50 years. “That includes agricultural development, that includes the establishment of shrimp farms and other coastal development projects.” According…